Features and Benefits: Interchangeable Anvil Design - Provides the ability to quickly swap between 3/8 " square drive, and 1/4 " square drive, and 1/4 " quick change hex; Brushless Motor - Delivers 50 ft-lbs of max torque and 0-450 No-Load RPM; Help Prevent Damage From Automotive Oils And Solvents - With glass-filled nylon tool housing; On-Board LED Light - Helps to illuminate tight, lowlight spaces; Variable Speed Trigger -Helps optimize user speed and control based on application; Forward/Reverse Switch - Allows for efficient working in tight spaces; Trigger Lock - Helps prevent accidental activation when applied; Cordless Compatibility - Across all DEWALT 12V MAX* batteries (sold separately);